低功率氦氖激光照射对兔13周固定关节软骨的影响。
Effect of low-power helium-neon laser irradiation on 13-week immobilized articular cartilage of rabbits.
作者信息
Bayat Mohammad, Ansari Anayatallah, Hekmat Hossien
机构信息
Anatomy Department and Cell and Molecular Research Center, Medical Faculty, Shaheed Beheshti University of Medical Sciences, Tehran, Iran.
出版信息
Indian J Exp Biol. 2004 Sep;42(9):866-70.
Influence of low-power (632.8 nm, Helium-Neon, 13 J/cm2, three times a week) laser on 13-week immobilized articular cartilage was examined with rabbits knee model. Number of chondrocytes and depth of articular cartilage of experimental group were significantly higher than those of sham irradiated group. Surface morphology of sham-irradiated group had rough prominences, fibrillation and lacunae but surface morphology of experimental group had more similarities to control group than to sham irradiated group. There were marked differences between ultrastructure features of control group and experimental group in comparison with sham irradiated group. Low-power Helium-Neon laser irradiation on 13-week immobilized knee joints of rabbits neutrilized adverse effects of immobilization on articular cartilage.
采用兔膝关节模型，研究低功率（632.8纳米，氦氖，13焦/平方厘米，每周三次）激光对固定13周的关节软骨的影响。实验组软骨细胞数量和关节软骨深度显著高于假照射组。假照射组表面形态有粗糙隆起、原纤维形成和腔隙，但实验组表面形态与对照组的相似性高于假照射组。与假照射组相比，对照组和实验组的超微结构特征存在显著差异。低功率氦氖激光照射兔固定13周的膝关节可中和固定对关节软骨的不良影响。
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